Install the watch.exe script as C:\watch.exe.
Register the watch: protocol handler in the registry
by downloading and running watch.reg or copying it from here:
Copy the contents of watch.js to a bookmark in your web browser. It supports the following features:
The bookmarklet will not work on Google’s default search results page. This is because the links there are not actually links directly to the results, but to another Google address that, after logging your selection, redirects you to the corresponding page.
Thus, in order to use the bookmarklet on Google’s results page, you need to install a web browser add-on or user script that removes this intermediary address from each link, replacing it with the real address of the destination. Here are a few suggestions:
DuckDuckGo performs similar link redirection in some cases, but
it can be disabled